<!DOCTYPE html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>{% block title %}默认标题{% endblock %}</title> <!-- 默认标题 -->
    <link rel="stylesheet" href="{{ url_for('static', filename='sss.css') }}">
</head>
<body>
    <div class="container">
        <!-- 主体内容区域 -->
        {% block content %}{% endblock %}
    </div>

    <!-- 底部导航栏 -->
    {% include 'footer.html' %}
</body>
</html>

